<template>
  <div class="wrapper" ref="wrapper">
    <div class="contnet">
      <slot></slot>
    </div>
  </div>
</template>


<script>
import BScroll from 'better-scroll'
import Pullup from '@better-scroll/pull-up'

BScroll.use(Pullup)
export default {
  name:"Scroll",
  props:{
    probeType:{
      type:Number,
      default:0
    },
    pullupLoad:{
      type:Boolean,
      default:true
    }
  },
  data(){
    return{
      scroll:null
    }
  },
  mounted(){
    //1.创建BScroll对象
    this.scroll=new BScroll(this.$refs.wrapper,{
      probeType:this.probeType,
      observeDOM: true,
      observeImage:true,
      click:true,
      pullUpLoad:this.pullupLoad,
      keepAlive:true
    })

    //2.监听滚动的位置
    this.scroll.on('scroll',position => {
      // console.log(position);
      this.$emit('scroll',position)
    })

    //3.监听上拉事件
    this.scroll.on('pullingUp',() =>{
      this.$emit('pullingUp')
    })


  },
  methods:{
    scrollTo(x,y,time=300){
      this.scroll && this.scroll.scrollTo(x,y,time)
    },
    finishPullUp(){
      this.scroll && this.scroll.finishPullUp()
    },
    getScrollY(){
      return this.scroll ? this.scroll.y: 0
    }
  }

}
</script>

<style>

</style>
